MGPS-2, Parkes, and PMN maps of HESS J1356−645. The ON region is represented by a white circle and the pulsar position is depicted by a white/black square. The PSF (FWHM) of each instrument is illustrated at the top right of the images. The cataloged radio sources are represented by red circles. The dashed and solid yellow circles indicate the Gaussian σ extent and the flux extraction radius of HESS J1356−645, respectively, as defined in the HGPS. The blue contours in the MGPS-2 map correspond to 3, 5, and 7σ in the HGPS significance map.